Move more string_util functions to base namespace.

components/password_manager/core/browser/browser_save_password_progress_logger.cc

Index: components/password_manager/core/browser/browser_save_password_progress_logger.cc
diff --git a/components/password_manager/core/browser/browser_save_password_progress_logger.cc b/components/password_manager/core/browser/browser_save_password_progress_logger.cc
index 6e47724eb5276a6f7b9d13d3a4886f43a7e859c7..f93ff5035652d451e9a6c883479316f9c4942871 100644
--- a/components/password_manager/core/browser/browser_save_password_progress_logger.cc
+++ b/components/password_manager/core/browser/browser_save_password_progress_logger.cc
@@ -17,7 +17,7 @@ namespace {
 // Replaces all non-digits in |str| by spaces.
 std::string ScrubNonDigit(std::string str) {
   std::replace_if(str.begin(), str.end(),
-                  [](char c) { return !IsAsciiDigit(c); }, ' ');
+                  [](char c) { return !base::IsAsciiDigit(c); }, ' ');
   return str;
 }